In reply to mrbird: You make a stupid comment on a forum then get annoyed when someone comments back. Maybe you don't understand how the system works so:
1. A climbing wall is a structure. it costs money to design, build and maintain.
2. A climbing wall has staff. These require paying.
3. A climbing wall is a business. It has overheads like insurance, heating, lighting, electricity, etc.
4. A club doesn't.
That is why a climbing wall charges 72 quid to teach you to climb and a club doesn't.
Oh, and if you weren't asking for advice, what was the point of your OP?